As informed through Material News dated October 20, 2025, ECOGAS shareholders through GDRs are reminded that on December 11, 2025, the Restricted Deposit Agreement term will come to an end and, consequently, the Program will expire. Therefore, shareholders may request J.P. Morgan Chase Bank, N.A. (“JPM” and/or the “Depositary”) in advance, through their intermediaries, the cancellation of GDRs and the delivery of the shares in an account registered in the local market. If such instructions are not given after the Program’s expiration, JPM will dispose of the shares in accordance with the processes it implements under the Restricted Deposit Agreement.